Advertising display device



FIG. 1 is a plan view of an advertising display device showing my new design in a flattened configuration;

FIG. 2 is a top perspective view thereof shown in an assembled configuration;

FIG. 3 is a bottom perspective view of FIG. 2;

FIG. 4 is a right side view of FIG. 2;

FIG. 5 is a left side view of FIG. 2;

FIG. 6 is a top view of FIG. 2;

FIG. 7 is a bottom view of FIG. 2; and,

FIG. 8 is a front view of FIG. 2. 

CLAIM I claim the ornamental design for an advertising display device, as shown and described. 